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Finding the Fourth Proportional to 251,044.78, 346,441.80 and 137,867.54

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Solution

The fourth proportional to 251,044.78, 346,441.80 and 137,867.54 is: 190,257.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,044.78 : 346,441.80 = 137,867.54 : x
  2. Step 2: Convert to fraction form
    251,044.78/346,441.80 = 137,867.54/x
  3. Step 3: Cross multiply
    251,044.78x = 346,441.80 × 137,867.54
  4. Step 4: Simplify right side
    251,044.78x = 47,763,078,719.17
  5. Step 5: Solve for x
    x = 47,763,078,719.17/251,044.78
  6. Step 6: Final answer
    x = 190,257.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.